Understanding Electric Fields and Forces

What is the primary cause of an electric charge moving within an electric field?

• Contact force

• Field force

• Magnetic force

• Gravitational force

How is the direction of an electric field determined around a positive source charge?

• Away from the positive source

• Randomly oriented

• Towards the positive source

• Perpendicular to the source

In what way are gravitational fields similar to electric fields?

• Both are scalar quantities

• Both exert contact forces

• Both can exert forces at a distance

• Both require external forces to function

What happens to potential energy when a charge moves with the electric field?

• Potential energy decreases

• Potential energy increases

• Potential energy fluctuates

• Potential energy remains constant

What is required for a charge to move against an electric field?

• No external force

• A gravitational field

• A magnetic field

• An external force

When a positive test charge moves towards a negative source charge, what type of movement is this?

• With the electric field

• Perpendicular to the electric field

• Random movement

• Against the electric field

What is the analogy used to describe the movement of a charge with the electric field?

• Moving downhill

• Moving uphill

• Moving sideways

• Moving in circles

What is the result of an external force doing work on a charge moving against the electric field?

• Decrease in potential energy

• Increase in potential energy

• No change in potential energy

• Fluctuation in potential energy

What is the natural movement of a positive test charge in an electric field?

• Towards a positive source

• Perpendicular to the field

• Towards a negative source

• Away from a negative source

What resource is suggested for further understanding of electric fields?

• Science magazine

• Online forum

• Physics textbook

• Electric field hockey game